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1 /* | |
2 * Copyright (C) 2014 Google Inc. All rights reserved. | |
sof
2014/09/18 07:33:17
New files are preferably adorned with a shorter ve
perkj_chrome
2014/09/18 14:47:08
Done.
| |
3 * | |
4 * Redistribution and use in source and binary forms, with or without | |
5 * modification, are permitted provided that the following conditions | |
6 * are met: | |
7 * | |
8 * 1. Redistributions of source code must retain the above copyright | |
9 * notice, this list of conditions and the following disclaimer. | |
10 * 2. Redistributions in binary form must reproduce the above copyright | |
11 * notice, this list of conditions and the following disclaimer | |
12 * in the documentation and/or other materials provided with the | |
13 * distribution. | |
14 * 3. Neither the name of Google Inc. nor the names of its contributors | |
15 * may be used to endorse or promote products derived from this | |
16 * software without specific prior written permission. | |
17 * | |
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
29 */ | |
30 | |
31 #include "config.h" | |
32 #include "core/html/MediaProvider.h" | |
33 | |
34 #include "wtf/HashMap.h" | |
35 #include "wtf/MainThread.h" | |
36 #include "wtf/text/StringHash.h" | |
37 | |
38 namespace blink { | |
39 | |
40 class MediaProviderConverterContainer { | |
41 public: | |
42 static MediaProviderConverterContainer& container(); | |
43 | |
44 void registerMediaProviderConverter(const String& interfaceName, const Media Provider::Converter&); | |
45 virtual MediaProvider* convert(const ScriptValue&); | |
46 | |
47 private: | |
48 HashMap<String, MediaProvider::Converter> m_converters; | |
49 }; | |
50 | |
51 MediaProviderConverterContainer& MediaProviderConverterContainer::container() | |
52 { | |
53 ASSERT(isMainThread()); | |
54 DEFINE_STATIC_LOCAL(MediaProviderConverterContainer, instance, ()); | |
55 return instance; | |
56 } | |
57 | |
58 void MediaProviderConverterContainer::registerMediaProviderConverter(const Strin g& interfaceName, const MediaProvider::Converter& converter) | |
59 { | |
60 if (m_converters.get(interfaceName).isNull()) | |
61 m_converters.set(interfaceName, converter); | |
62 } | |
63 | |
64 MediaProvider* MediaProviderConverterContainer::convert(const ScriptValue& value ) | |
65 { | |
66 for (HashMap<String, MediaProvider::Converter>::iterator it = m_converters.b egin(); it != m_converters.end(); ++it) { | |
67 MediaProvider* provider = (it->value)(value); | |
68 if (provider) | |
69 return provider; | |
70 } | |
71 return nullptr; | |
72 } | |
73 | |
74 MediaProvider::MediaProvider(const String& interfaceName, const Converter& conve rter) | |
75 { | |
76 MediaProviderConverterContainer& container = MediaProviderConverterContainer ::container(); | |
77 container.registerMediaProviderConverter(interfaceName, converter); | |
78 } | |
79 | |
80 MediaProvider* MediaProvider::convert(const ScriptValue& value) | |
81 { | |
82 MediaProviderConverterContainer& container = MediaProviderConverterContainer ::container(); | |
83 return container.convert(value); | |
84 } | |
85 | |
86 } // namespace blink | |
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